THE VELOCITY OF STREAMER TIPS IN IMPULSE POINT-TO-PLANE CORONA IN AIR, USING LICHTENBERG FIGURE TECHNIQUES,

Abstract

Positive and negative streamer lengths were measured in point-to-plane impulse corona in air at atmospheric pressure using Lichtenberg figure technique. Applying short time pulses from 9 to 40 nsec duration timedistance plots were obtained, which allowed one to determine the streamer tip velocity. For a 4 cm gap, a 1 mm diameter point, and a 30 kV pulse an average tip velocity of 1.8X10 to the 8th power cm/sec was found. Comparing these data with HUDSON'S photomultiplier measurement, we may identify the Lichtenberg figure with the 'primary' streamer of HUDSON. The negative streamer tip velocity in the cathode part of the gap was approximately an order of magnitude smaller than the positive streamer velocity. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 24, 1964
Accession Number
AD0616076

Entities

People

  • Gunter Waidmann

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Barometric Pressure
  • Diameters
  • Lepidoptera
  • Measurement
  • Physical Properties
  • Pressure Measurement

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Plasma Physics.